gavin18787
Premium Member
Registered: 22nd Feb 05
Location: Basildon, Essex
User status: Offline
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I think my gsi is burning oil. As the last two weekends ive had to top it up with about 300ml of oil (do about 200 miles a week) to bring it back to the normal level.
Cant see any leaks and if you accelerate hard through the rev range it is a little smokey at the top end, plus the exhaust is a little black around the tip.
What would be the most common cause of this (X16 engine btw)
Drives supercharged Tec with torque  
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Superlite Ltd.
Member
Registered: 9th Jan 07
User status: Offline
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piston rings or valve stem seals
mine is the same 
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Vaux Lad
Member
Registered: 15th Dec 04
Location: Stoke-on-Trent
User status: Offline
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Oil burning is not black.
It'll be greyish/blue smoke. Like a 2stroke engines exhaust smoke,lol.
[Edited on 16-06-2007 by Vaux Lad]
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gavin18787
Premium Member
Registered: 22nd Feb 05
Location: Basildon, Essex
User status: Offline
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whats black then, looks "sotty"
Drives supercharged Tec with torque
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Jake
Member
Registered: 24th Jan 05
User status: Offline
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overfuelling
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Vaux Lad
Member
Registered: 15th Dec 04
Location: Stoke-on-Trent
User status: Offline
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Blacks(sooty) is overfueling.
Remove the spark plugs, if its burning oil the plugs will be covered in shiny/wet oil.
If there black,dry and "dusty" its ovefueling.
Altho if your oil levels going down, and its not leaking, it is burning it. Could be rings,stem seals, headgasket.
[Edited on 16-06-2007 by Vaux Lad]
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Rob B
Member
Registered: 8th Jan 04
Location: Area Motorsport Drives: Race EP3
User status: Offline
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probably valve stem seals, that goes on pretty much all these engines, weak point
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Vaux Lad
Member
Registered: 15th Dec 04
Location: Stoke-on-Trent
User status: Offline
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Leave it overnight, then get someone to stand by the exhaust tailpipe when you next start it.
Stem seals usually gives blue smoke right on startup(as oil seeps through the seals with the engine sitting...) then gets burned as soon as your start it.
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gavin18787
Premium Member
Registered: 22nd Feb 05
Location: Basildon, Essex
User status: Offline
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quote:
Originally posted by Vaux Lad
Leave it overnight, then get someone to stand by the exhaust tailpipe when you next start it.
Stem seals usually gives blue smoke right on startup(as oil seeps through the seals with the engine sitting...) then gets burned as soon as your start it.
ok il try that.
Wont be the head gasket as its just had a new cylinder head etc
Drives supercharged Tec with torque
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smcGSI16V
Member
Registered: 26th May 03
Location: Farnborough Drives: Thurlby 888 CDTi No.98
User status: Offline
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If its a c16xe, according to the owners manual they can use up to 1 litre of oil per 1000 miles!
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gavin18787
Premium Member
Registered: 22nd Feb 05
Location: Basildon, Essex
User status: Offline
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Oh  really
Mines an x16 bottom end with a ported C16 head
[Edited on 17-06-2007 by gavin18787]
Drives supercharged Tec with torque
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